﻿/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2009 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * FCKToolbarPanelButton Class: Handles the Fonts combo selector.
 */

var FCKToolbarStyleCombo = function( tooltip, style )
{
    if ( tooltip === false )
        return ;

    this.CommandName = 'Style' ;
    this.Label        = this.GetLabel() ;
    this.Tooltip    = tooltip ? tooltip : this.Label ;
    this.Style        = style ? style : FCK_TOOLBARITEM_ICONTEXT ;

    this.DefaultLabel = FCKConfig.DefaultStyleLabel || '' ;
}

// Inherit from FCKToolbarSpecialCombo.
FCKToolbarStyleCombo.prototype = new FCKToolbarSpecialCombo ;

FCKToolbarStyleCombo.prototype.GetLabel = function()
{
    return FCKLang.Style ;
}

FCKToolbarStyleCombo.prototype.GetStyles = function()
{
    var styles = {} ;
    var allStyles = FCK.ToolbarSet.CurrentInstance.Styles.GetStyles() ;

    for ( var styleName in allStyles )
    {
        var style = allStyles[ styleName ] ;
        if ( !style.IsCore )
            styles[ styleName ] = style ;
    }
    return styles ;
}

FCKToolbarStyleCombo.prototype.CreateItems = function( targetSpecialCombo )
{
    var targetDoc = targetSpecialCombo._Panel.Document ;

    // Add the Editor Area CSS to the panel so the style classes are previewed correctly.
    FCKTools.AppendStyleSheet( targetDoc, FCKConfig.ToolbarComboPreviewCSS ) ;
    FCKTools.AppendStyleString( targetDoc, FCKConfig.EditorAreaStyles ) ;
    targetDoc.body.className += ' ForceBaseFont' ;

    // Add ID and Class to the body.
    FCKConfig.ApplyBodyAttributes( targetDoc.body ) ;

    // Get the styles list.
    var styles = this.GetStyles() ;

    for ( var styleName in styles )
    {
        var style = styles[ styleName ] ;

        // Object type styles have no preview.
        var caption = style.GetType() == FCK_STYLE_OBJECT ?
            styleName :
            FCKToolbarStyleCombo_BuildPreview( style, style.Label || styleName ) ;

        var item = targetSpecialCombo.AddItem( styleName, caption ) ;

        item.Style = style ;
    }

    // We must prepare the list before showing it.
    targetSpecialCombo.OnBeforeClick = this.StyleCombo_OnBeforeClick ;
}

FCKToolbarStyleCombo.prototype.RefreshActiveItems = function( targetSpecialCombo )
{
    var startElement = FCK.ToolbarSet.CurrentInstance.Selection.GetBoundaryParentElement( true ) ;

    if ( startElement )
    {
        var path = new FCKElementPath( startElement ) ;
        var elements = path.Elements ;

        for ( var e = 0 ; e < elements.length ; e++ )
        {
            for ( var i in targetSpecialCombo.Items )
            {
                var item = targetSpecialCombo.Items[i] ;
                var style = item.Style ;

                if ( style.CheckElementRemovable( elements[ e ], true ) )
                {
                    targetSpecialCombo.SetLabel( style.Label || style.Name ) ;
                    return ;
                }
            }
        }
    }

    targetSpecialCombo.SetLabel( this.DefaultLabel ) ;
}

FCKToolbarStyleCombo.prototype.StyleCombo_OnBeforeClick = function( targetSpecialCombo )
{
    // Two things are done here:
    //    - In a control selection, get the element name, so we'll display styles
    //      for that element only.
    //    - Select the styles that are active for the current selection.

    // Clear the current selection.
    targetSpecialCombo.DeselectAll() ;

    var startElement ;
    var path ;
    var tagName ;

    var selection = FCK.ToolbarSet.CurrentInstance.Selection ;

    if ( selection.GetType() == 'Control' )
    {
        startElement = selection.GetSelectedElement() ;
        tagName = startElement.nodeName.toLowerCase() ;
    }
    else
    {
        startElement = selection.GetBoundaryParentElement( true ) ;
        path = new FCKElementPath( startElement ) ;
    }

    for ( var i in targetSpecialCombo.Items )
    {
        var item = targetSpecialCombo.Items[i] ;
        var style = item.Style ;

        if ( ( tagName && style.Element == tagName ) || ( !tagName && style.GetType() != FCK_STYLE_OBJECT ) )
        {
            item.style.display = '' ;

            if ( ( path && style.CheckActive( path ) ) || ( !path && style.CheckElementRemovable( startElement, true ) ) )
                targetSpecialCombo.SelectItem( style.Name ) ;
        }
        else
            item.style.display = 'none' ;
    }
}

function FCKToolbarStyleCombo_BuildPreview( style, caption )
{
    var styleType = style.GetType() ;
    var html = [] ;

    if ( styleType == FCK_STYLE_BLOCK )
        html.push( '<div class="BaseFont">' ) ;

    var elementName = style.Element ;

    // Avoid <bdo> in the preview.
    if ( elementName == 'bdo' )
        elementName = 'span' ;

    html = [ '<', elementName ] ;

    // Assign all defined attributes.
    var attribs    = style._StyleDesc.Attributes ;
    if ( attribs )
    {
        for ( var att in attribs )
        {
            html.push( ' ', att, '="', style.GetFinalAttributeValue( att ), '"' ) ;
        }
    }

    // Assign the style attribute.
    if ( style._GetStyleText().length > 0 )
        html.push( ' style="', style.GetFinalStyleValue(), '"' ) ;

    html.push( '>', caption, '</', elementName, '>' ) ;

    if ( styleType == FCK_STYLE_BLOCK )
        html.push( '</div>' ) ;

    return html.join( '' ) ;
}
